Temat: ball screw - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Influence of linear feed drive controller setting in CNC turning lathe on the stability of machining
Autorzy:: Grau, Jan
Sulitka, Matej
Soucek, Pavel
Powiązania:: https://bibliotekanauki.pl/articles/100033.pdf
Data publikacji:: 2019
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: chatter
ball-screw
feed drive
Opis:: The paper deals with the influence of linear feed drive controller setting of a CNC turning lathe on the stability of machining. A coupled simulation model of feed drive control and ball screw drive mechanics with a transmission belt was created and validated by the feed drive diagnostic measurements. The influence of drive control on the overall dynamic compliance at the TCP and the limits of stable depth of cut was examined. Impact of the feed drive actual kinematics configuration on the stability limits was studied as well.
Źródło:: Journal of Machine Engineering; 2019, 19, 2; 18-31
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Ball screw unit precise modelling with dynamics of loads and moving heat sources taken into account
Autorzy:: Jedrzejewski, Jerzy
Kowal, Zbigniew
Kwasny, Wojciech
Winiarski, Zdzislaw
Powiązania:: https://bibliotekanauki.pl/articles/99907.pdf
Data publikacji:: 2019
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: ball screw
feed drive
machine tool
modelling
Opis:: This paper deals with the precision modelling of the ball screw unit’s thermal behaviour in the turning centre and its impact on the tool head positioning error. The error components along controllable axes X and Z are described in detail using an FE model integrating the changes in thermal and force loads and deformations occurring during the motion of the nut as a heat source. The impact of the nut work cycle on the thermal deformations of the ball screw and the displacements of the slideways and the screw points along both the axes and on carriage positioning precision is demonstrated.
Źródło:: Journal of Machine Engineering; 2019, 19, 4; 27-41
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Simulation investigation of ball screws for high speed transmitting systems
Autorzy:: Sobolewski, J. Z.
Małkiński, J.
Pieniecki, P.
Powiązania:: https://bibliotekanauki.pl/articles/1429177.pdf
Data publikacji:: 2008
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: ball screw
CNC feed systems
rigidity
impact force
Opis:: The ball screws are used in feed systems in CNC machines working with constantly higher cutting speed. When the speed of the balls reaches certain levels, the repetitive chock (impact forces) generated by the balls in the "transient" phase of the balls' motion and forces acting in the return channel cause damage to the recirculation ball system. A simulation of impact forces for variable length of transient phase in function of the rotational speed was made. The static axial rigidity is a very important factor to be considered in defining ball screws performance and exerts a major influence on positioning accuracy of NC machine tools. One of rigidity components is the balls/balltrack area rigidity, dependent on Hertz's deflections. However, due to machining inaccuracies, the ball screws properties (especially rigidity) are considerably lower than the theoretical ones. A coefficient known as the geometric correction factor makes it possible to predict the rigidity of the ball screw. A computer simulation of the influence of machining inaccuracies on contact deflections, rigidity and servo drive resonance was carried out. It was examined what rotational speeds set off the harmful phenomenon of the agreement of the frequency of the arrangement of the impact forces with the frequency of the servo drive system resonance. The presented method allows for the calculation of the impact forces, total rigidity and resonance of NC machine feed system, in the preliminary phase of technical project.
Źródło:: Journal of Machine Engineering; 2008, 8, 4; 59-67
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: A comparision of model and signal based condition monitoring and mode separation for predictive maintenance of feed drives
Autorzy:: Maier, D.
Heisel, U.
Powiązania:: https://bibliotekanauki.pl/articles/100055.pdf
Data publikacji:: 2011
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: mode separation
condition monitoring
ball screw drive
predictive maintenance
Opis:: Modern production strategies increase the demand for closer monitoring of the machine's condition. Especially wear affects its condition. This paper deals with the methodology of condition monitoring that can be based on different sources of data such as controller NC CNC and additional sensors. Two main methods for assessment are signal analysis based exclusively on measurement data and a model based method The latter is based on comparing the simulation of the objects behaviour with the acquired data. Ball screw drives are key elements of machine tools. They considerably contribute to the machine's performance. The paper compares two signal-based wear inducing characteristics and discusses the results. Afterwards a model-based approach is discussed.
Źródło:: Journal of Machine Engineering; 2011, 11, 4; 138-151
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Selected sources of the ballscrew noise
Wybrane zagadnienia hałasu przekładni śrubowych tocznych
Autorzy:: Pieniecki, P.
Powiązania:: https://bibliotekanauki.pl/articles/213845.pdf
Data publikacji:: 2009
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: hałas
przekładnie śrubowe toczne
sources selected
ball screw noise
Opis:: Increasing of machines yield has been a permanent challenge for the new generation of machine designers and engineers for years. Recently they also have to consider the noise reduction requirements according to European directives and Global ISO norms. Modern machine, for example CNC Machining Center, consists of many systems and components that emit noise during their work. Ballscrew drive is one the most significant component emitting noise (Fig.1).
Nieustanne zwiększanie wydajności obrabiarek jest od wielu lat wyzwaniem dla kolejnych pokoleń inżynierów i projektantów maszyn. Od niedawna, podczas procesu projektowania, uwględniane muszą być także wymagania poziomu hałasu zgodne z europejskimi dyrektywami, normami ISO oraz światowymi normami. Nowoczesne maszyny, jakimi mogą być na przykład centra obróbkowe CNC, składają się z wielu podsystemów i komponentów emitujących hałas podczas swojej pracy. Przeprowadzone badania pokazują, że przekładnia śrubowa toczna jest jednym z ważniejszych źródeł hałasu obrabiarki.
Źródło:: Prace Instytutu Lotnictwa; 2009, 5 (200); 155-159
0509-6669
2300-5408
Pojawia się w:: Prace Instytutu Lotnictwa
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: A study on the development of a new grinding processes for high-lead ball screw nuts
Autorzy:: Choi, Ch.
Ha, Y.
Kim, H.
Lee, C.
Powiązania:: https://bibliotekanauki.pl/articles/99599.pdf
Data publikacji:: 2010
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: high-lead ball screw nuts
new grinding process
surface roughness
Opis:: This paper proposes a method that machines the race of high-lead ball screw nuts, which is difficult to machine using the existing geometrical machining method, without any interferences and changes in its load rating in order to perform the high-speed in ball screws. This study calculates the inclination angle of the axis of the grinding stone for avoiding the contact of the axis to the inner diamete of the nut and determines the shape of the grinding stone through changing the inclination angle and dressing curvature determined in a dressing device Then, the grinding condition will be determined by measuring the shape meter of the screw race for solving the problem. Also, the surface roughness of the grinded surface was measured using a surface roughness tester, and check with applying a grinding process of product not being high-lead ball screw.
Źródło:: Journal of Machine Engineering; 2010, 10, 1; 50-57
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Identification of the parameters of a ball-screw mechanism model
Identyfikacja parametrów modelu mechanizmu śrubowo-tocznego
Autorzy:: Dolata, M.
Jastrzębski, D.
Powiązania:: https://bibliotekanauki.pl/articles/94130.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: ball-screw
mechanism
identification
model
parameters
mechanizm śrubowo-toczny
identyfikacja
parametry
Opis:: In this article a method for identification of the static properties of a ball-screw mechanism is shown. The nonlinearity of its deformation was shown experimentally. Then, a model of the mechanism was made and its parameters were identified. The experimental results were summarized and compared with calculations. Recommendations were made for the modeling of carrying units containing ball-screw mechanisms.
W artykule przedstawiono przykład identyfikacji mechanizmu śrubowo-tocznego w zakresie jego właściwości statycznych. Opisano badania doświadczalne tego mechanizmu wykazując nieliniowy charakter jego odkształceń. Opracowano adekwatny model mechanizmu i przeprowadzono proces identyfikacji jego parametrów. Zestawiono i porównano wyniki badań doświadczalnych z wynikami obliczeń. Sformułowano zalecenie dotyczące modelowania układów nośnych maszyn technologicznych zawierających w swojej konstrukcji mechanizmy śrubowo- toczne.
Źródło:: Archives of Mechanical Technology and Materials; 2015, 35; 81-91
2450-9469
Pojawia się w:: Archives of Mechanical Technology and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Precise modelling of machine tool drives with ball screw thermal behavior
Autorzy:: Winiarski, Z.
Kowal, Z.
Jędrzejewski, J.
Kwaśny, W.
Powiązania:: https://bibliotekanauki.pl/articles/100072.pdf
Data publikacji:: 2017
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: machine tool
feed drive
ball screw
moving heat sources
numerical simulation
Opis:: This paper briefly describes the current requirements which machine tool ball screws must meet and indicates the need for the modelling and numerical simulation of the latter. The structure of a holistic ball screw model and ways of modelling the properties of the ball screw in a turning centre, including the moving heat sources on the guides and in the screw-nut joint, are presented. The results of computing the heating up and displacements of a preloaded screw and the screw without preload are reported. The modelled changes in motion resistance and in displacements are shown to be in agreement with the results of measuring the current drawn by the drive’s motor. It is also shown that the models represent well the real physical phenomena occurring in the ball screw during the execution of repeatable work cycles by the drive.
Źródło:: Journal of Machine Engineering; 2017, 17, 1; 31-45
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Experimental research of paperboard cutting in die cutting press with the screw–nut transmission of drive mechanism of a movable pressure plate
Autorzy:: Ternytskyi, Serhij
Rehei, Ivan
Kandiak, Nazar
Radikhovskyi, Ihor
Mlynko, Oksana
Powiązania:: https://bibliotekanauki.pl/articles/2037808.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: die cutting press
pressure plate
screw–nut transmission
lead screw
ball screw
cutting knife
die cutting forme
paperboard blank
torque
Opis:: This paper reports experimental research of torques during paperboard cutting in the die cutting press with the screw–nut transmission in the drive mechanism of the movable pressure plate. The purpose of the study is to substantiate the practical implementa-tion of the pressure plate drive mechanism with the use of screw–nut transmission for the production of cartons of paperboard blanks. The manufactured experimental bench for the research of paperboard blanks provides the possibility of getting dependencies of loads on different parameters of the die cutting process. The developed method of the experimental research envisages the use of the strain gauge method and the wireless module for data measurement and software for its processing that allow getting trustworthy results with minimum faults. As a result of experimental research studies, the impact of paperboard thickness and cutting velocity on torque values has been established. Results of experimental research allow getting trustworthy and systematised information about torque values depending on the thickness of the paperboard, the paperboard fibre direction and pressure plate displacement velocity. It is established that torque values on drive shaft during die cutting of paperboard blanks made of folding boxboard with thickness that lay in range of 0.3–0.7 mm. Experimental research studies show the impact of rotation speed of a drive shaft of the pressure plate drive mechanism on the torque value. The article shows the workability of the designed device with screw–nut transmission in the drive mechanism of a movable pressure plate.
Źródło:: Acta Mechanica et Automatica; 2021, 15, 3; 122--131
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Applying rapid heating for controlling thermal displacement of CNC lathe
Autorzy:: Than, Van-The
Wang, Chi-Chang
Ngo, Thi-Thao
Guo, Guan-Liang
Powiązania:: https://bibliotekanauki.pl/articles/27309848.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: rapid heating
CNC lathe
thermal displacement
ball screw
temperature control
szybkie nagrzewanie
tokarka CNC
przemieszczenie termiczne
śruba kulowa
kontrola temperatury
Opis:: Thermal error always exists in a machine tool and accounts for a large part of the total error in the machine. Thermal displacement in X-axis on a CNC lathe controlled based on a rapid heating system is presented in this paper. Positive Temperature Coefficient (PTC) heating plates are installed on the X-axis of the machine. A control temperature system is constructed for rapid heating which further helps the thermal displacement to quickly reach stability. The system then continuously maintains stable compensation of the thermal error. The presented rapid heating technique is simpler than the compensation of machine thermal errors by interference in the numerical control system. Results show that the steady state of the thermal displacement in the X-axis can be acquired in a shorter time. In addition, thermal errors in constant and varying working conditions could be significantly reduced above 80% and 60%, respectively, compared to those without using the rapid heating. Therefore, the proposed method has a high potential for application on the CNC lathe machine for improving its precision.
Źródło:: Archive of Mechanical Engineering; 2022, LXIX, 3; 519--539
0004-0738
Pojawia się w:: Archive of Mechanical Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Parametric model analysis, geometrical characteristics and tool trajectories to surface roughness when machining the cycloid screw by a five-axis milling machine
Autorzy:: Pham, Van Bong
Thien, Nguyen Van
Nguyen, Van Que
Duy, Trinh Nguyen
Nguyen, Duy Khanh
Tien, Dung Hoang
Powiązania:: https://bibliotekanauki.pl/articles/2086278.pdf
Data publikacji:: 2022
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: cycloid screw surface
five axis milling machine
ball nose end mill
surface roughness
Opis:: To improve the screw machining accuracy in modern air compressors. This paper investigates three main issues during the development process for cycloid screw machining methods on five-axis CNC machine tools with high precision and efficiency. First, the theoretical basis of cycloid screw surface shaping and derivative of the final profile equation is established. Then, modeling the center trajectory and feed rate according to the cycloid screw profile is given. Next is the experimental setup and simulation of the cycloid screw machining process and discussions. The obtained surface quality prediction parameters are close to the actual measured value, which can be used as a reference model for five-axis CNC milling technology processes. All experimental results obtained by the proposed mathematical model show that a surface with good surface quality is created, meeting the requirements for surface quality. The main work can be used as references for engineers and technicians in practice.
Źródło:: Journal of Machine Engineering; 2022, 22, 2; 108--124
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "ball screw" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język